Home / 19,149.18-28,662.32-10,242.21

Finding the Fourth Proportional to 19,149.18, 28,662.32 and 10,242.21

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Solution

The fourth proportional to 19,149.18, 28,662.32 and 10,242.21 is: 15,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.18 : 28,662.32 = 10,242.21 : x
  2. Step 2: Convert to fraction form
    19,149.18/28,662.32 = 10,242.21/x
  3. Step 3: Cross multiply
    19,149.18x = 28,662.32 × 10,242.21
  4. Step 4: Simplify right side
    19,149.18x = 293,565,633.62
  5. Step 5: Solve for x
    x = 293,565,633.62/19,149.18
  6. Step 6: Final answer
    x = 15,330.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.